HP Z600 Xeon E5645 6 core cpu/hypertheaded for a total of 12 cores, this system can have another cpu installed for a 24 core system, 650 watt ps, 8gig ecc ddr3 ram, 500gig hard drive, ATI V3800 video card, windows 7 pro, keyboard and microsoft mouse, warranty until Sept 22 2014, new condition I just don't have the box. These systems sell online for well over 2200.00.